Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Basf Se › Dirk Hammel
DH

Dirk Hammel — 2 Patents

Basf Se: 2 patents #5,851 of 13,826Top 45%
MEMax-Planck-Gesellschaft Zur Föderung Der Wissenschaften E.V.: 2 patents #535 of 3,651Top 15%
Worms, DE: #133 of 331 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Dirk Hammel has been granted 2 US patents while listed as an inventor at Basf Se. The first was granted in 2008 and the most recent in June 2009. Dirk Hammel ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dirk Hammel in Worms, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7550606 9-cyano-substituted perylene-3,4-dicarboxylic acid monoimides Arno Boehm, Peter Blaschka, Willi Helfer, Peter Schlichting, Klaus Muellen 2009-06-23
7446198 9-Cyano-substituted perylene-3, 4-dicarboxylic monoimides Arno Boehm, Peter Blaschka, Willi Helfer, Peter Schlichting, Klaus Muellen 2008-11-04

Frequent Collaborators

Arno Boehm2 shared
Peter Schlichting2 shared
Peter Blaschka2 shared
Willi Helfer2 shared
Klaus Muellen2 shared

Nearby-Ranked Inventors

Leonard Mattheis2
Yiqi SHI2
Roberto DiCecco2
Haoneng Xu2
Emily Chew2
So Young Bae2
Julian Alexander Georgi2
Yoshihiro Asahara2
Assaf Ariel2